Climatological Report (Daily)
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000
CDUS43 KLOT 170637
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1237 AM CST FRI FEB 17 2017


...................................

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR FEBRUARY 16 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         41    419 PM  58    1921  36      5       33
  MINIMUM         30    744 AM -10    1885  20     10       24
  AVERAGE         36                        28      8       29

PRECIPITATION (IN)
  YESTERDAY        0.00          1.94 1883   0.07  -0.07     0.04
  MONTH TO DATE    0.47                      0.91  -0.44     1.00
  SINCE DEC 1      5.11                      4.89   0.22     6.71
  SINCE JAN 1      3.34                      2.64   0.70     1.84

SNOWFALL (IN)
  YESTERDAY        0.0           6.0  1997   0.3   -0.3      0.4
  MONTH TO DATE    T                         5.5   -5.5      3.8
  SINCE DEC 1     18.3                      24.5   -6.2     14.6
  SINCE JUL 1     18.3                      25.9   -7.6     25.8
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       29                        37     -8       36
  MONTH TO DATE  539                       625    -86      645
  SINCE DEC 1   2887                      3059   -172     2684
  SINCE JUL 1   3716                      4315   -599     3657

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1      0                         0      0        0
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION    SE (130)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION    NE (50)
  AVERAGE WIND SPEED     8.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    69          1000 PM
 LOWEST     34           100 PM
 AVERAGE    52

..........................................................


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   36        60      1880
 MINIMUM TEMPERATURE (F)   21       -11      1903


SUNRISE AND SUNSET
FEBRUARY 17 2017......SUNRISE   644 AM CST   SUNSET   527 PM CST
FEBRUARY 18 2017......SUNRISE   643 AM CST   SUNSET   529 PM CST


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




$$



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